<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>走马灯边框-首尾相连</title>
    <link rel="stylesheet" href="./demo.css" />
  </head>
  <body>
    <div class="container">
      <div class="item">走马灯边框</div>
    </div>
  </body>
</html>
